FlexiGas DS Contractor Range
DS 40mm Contractor Kit – 5m with 2 Copper Unions
A complete gas pipe installation kit featuring double-sleeved CSST pipe, copper compression unions and yellow silicone tape for professional gas installation applications.
The FlexiGas DS 40mm Contractor Kit – 5m with 2x Copper Unions (DS-CK40-5M-CC) provides a convenient, ready-to-use solution for commercial gas installation projects. Supplied with a 5-metre coil of double-sleeved FlexiGas DS corrugated stainless steel tubing (CSST), two FlexiGas-to-copper compression unions and a roll of yellow silicone tape, this contractor kit brings essential installation components together in one package.
Featuring an integrated, V0 fire-rated sleeve, the FlexiGas DS pipe is designed for installation through suitable walls, floors, screed and unvented voids without requiring additional sleeving where the supplied sleeve meets the applicable installation requirements. The system is designed to support faster installation compared with traditional copper pipework, while the included compression unions allow connections directly to compatible copper pipework.
The FlexiGas DS-40 contractor kit is certified to BSI Kitemark KM 598726 and EN 15266, with the supplied specification also listing fire testing to EN 1775 Annex A and B. It is suitable for professional gas engineers working on commercial installations, including plant rooms and commercial kitchens, subject to the relevant design, sizing and installation requirements.
DN40 / 40mm
5m Pipe Length
2 Copper Unions
BSI Kitemark Certified
Sleeve Included
Key Product Highlights
0.5 bar
Maximum operating pressure
Key Features
1. 5-Metre Double-Sleeved CSST Pipe
The kit includes 5 metres of 40mm FlexiGas DS corrugated stainless steel tubing with an integrated outer sleeve, providing a practical pipework solution for suitable commercial gas installations.
2. Integrated V0 Fire-Rated Sleeve
The built-in sleeve is designed to meet the stated UK definition of a sleeve and supports installation through suitable walls, floors, screed and unvented voids, subject to applicable standards and installation requirements.
3. Two FlexiGas-to-Copper Compression Unions
Two dezincification-resistant brass compression unions are supplied to connect compatible FlexiGas pipework directly to copper pipework, helping simplify connections at both ends of the installation.
4. Designed for Faster Installation
The integrated sleeve and included connection fittings help reduce additional preparation and component sourcing. The supplied product information states installation can be up to four times faster than copper, depending on the application and installation conditions.
5. Certified Gas Pipe System
The product specification lists BSI Kitemark KM 598726 and EN 15266 certification, with fire testing to EN 1775 Annex A and B. Always check the manufacturer's current technical documentation for the relevant application and compliance requirements.
6. Silicone Tape Included
A roll of yellow silicone tape is included for wrapping the gap at the fitting tail after the gas tightness test has been completed, in accordance with the manufacturer's instructions.
What's Included in the Kit?
5m FlexiGas DS-40 Pipe
One 5-metre coil of 40mm double-sleeved CSST pipe with an integrated V0 fire-rated sleeve.
2 Copper Compression Unions
Two FlexiGas-to-copper compression unions made from dezincification-resistant brass.
Yellow Silicone Tape
One roll of silicone tape for the fitting-tail gap, to be used as directed by the manufacturer.
Ideal Applications
- Commercial gas installation and pipework connection projects.
- Gas connections through suitable walls, floors and screed.
- Plant rooms and commercial kitchen installations.
- Projects requiring connections between compatible FlexiGas CSST and copper pipework.
- Professional gas engineers seeking a convenient kit with pipe, connection unions and silicone tape supplied together.
Technical Specifications
| Product Information |
| Manufacturer |
FlexiGas™ |
| Model / Manufacturer Part Number |
DS-CK40-5M-CC |
| Product Type |
Double-Sleeved CSST Contractor Kit |
| Nominal Size |
DN40 / 40mm |
| Pipe Length |
5 metres |
| Pipe Construction |
Corrugated stainless steel tubing (CSST), double-sleeved |
| Maximum Overall Diameter Including Sleeve |
63mm |
| Included Fittings |
2x FlexiGas-to-copper compression unions |
| Fitting Material |
Dezincification-resistant brass |
| Maximum Operating Pressure |
0.5 bar, as supplied |
| Certification |
BSI Kitemark KM 598726; EN 15266 |
| Additional Fire Testing |
EN 1775 Annex A and B, as supplied |
| Sleeve |
Integrated V0 fire-rated sleeve |
| Colour |
Yellow |
| Included Accessory |
1x roll of yellow silicone tape |
| Warranty |
1 year, subject to manufacturer's terms and conditions |
Frequently Asked Questions
1. What is included in the FlexiGas DS 40mm Contractor Kit?
The kit contains a 5-metre coil of 40mm double-sleeved FlexiGas DS CSST pipe, two FlexiGas-to-copper compression unions and one roll of yellow silicone tape.
2. What is the size and length of the pipe?
The supplied pipe is DN40 (40mm) and measures 5 metres in length. Its maximum overall diameter, including the sleeve, is listed as 63mm.
3. Can the FlexiGas DS kit connect directly to copper pipework?
Yes. The kit includes two FlexiGas-to-copper compression unions designed to connect compatible FlexiGas pipework directly to copper pipework. Check the manufacturer's fitting instructions for compatibility and installation requirements.
4. Does the pipe have a built-in sleeve?
Yes. The pipe features an integrated V0 fire-rated sleeve. Whether additional protection is required depends on the installation, applicable standards and the manufacturer's instructions.
5. What is the maximum operating pressure?
The supplied product specifications state a maximum operating pressure of 0.5 bar. Confirm suitability for the intended gas installation using the manufacturer's technical documentation.
6. What certifications does the FlexiGas DS-40 kit have?
The supplied specifications list BSI Kitemark KM 598726 and EN 15266, along with fire testing to EN 1775 Annex A and B. Refer to current manufacturer documentation for the applicable scope of certification.
7. What warranty is supplied with the kit?
The supplied product information lists a 1-year warranty, subject to the manufacturer's terms and conditions.
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